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Transmission System Projects

The transmission system is Ontario’s electricity highway. Through it we send vast amounts of electricity from hydroelectric, wind, solar, nuclear, and natural gas generators over long distances to the Local Distribution Companies (LDCs) that power Ontario homes and businesses. We continue to make investments to maintain and upgrade our system. We work with communities to ensure that our transmission system has sufficient capacity to deliver a safe and reliable supply of electricity.

The Planning Process

Illustration of a Hydro One lineman

Each major project is unique, but they all follow a similar planning process. Explore our integrated planning approach here.

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Featured Projects:

Image of downtown Toronto

Power Downtown Toronto

 

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Image of transmitter

Overbrook to Riverview

 

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Image of a house

Leaside to Main

 

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Image of a Hydro One employee working on a line

Power West Toronto

 

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Class Environmental Assessment for Minor Transmission Facilities

Illustration of a Hydro One dump truck with a leaf coming out of it


 

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